Line data    Source code

       1             : /*
       2             :    Unix SMB/CIFS Implementation.
       3             : 
       4             :    DSDB replication service - extended operation code
       5             : 
       6             :    Copyright (C) Andrew Tridgell 2010
       7             :    Copyright (C) Andrew Bartlett 2010
       8             :    Copyright (C) Nadezhda Ivanova 2010
       9             : 
      10             :    based on drepl_notify.c
      11             : 
      12             :    This program is free software; you can redistribute it and/or modify
      13             :    it under the terms of the GNU General Public License as published by
      14             :    the Free Software Foundation; either version 3 of the License, or
      15             :    (at your option) any later version.
      16             : 
      17             :    This program is distributed in the hope that it will be useful,
      18             :    but WITHOUT ANY WARRANTY; without even the implied warranty of
      19             :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      20             :    GNU General Public License for more details.
      21             : 
      22             :    You should have received a copy of the GNU General Public License
      23             :    along with this program.  If not, see <http://www.gnu.org/licenses/>.
      24             : 
      25             : */
      26             : 
      27             : #include "includes.h"
      28             : #include "ldb_module.h"
      29             : #include "dsdb/samdb/samdb.h"
      30             : #include "samba/service.h"
      31             : #include "dsdb/repl/drepl_service.h"
      32             : #include "param/param.h"
      33             : 
      34             : #undef DBGC_CLASS
      35             : #define DBGC_CLASS            DBGC_DRS_REPL
      36             : 
      37             : 
      38             : /*
      39             :   create the role owner source dsa structure
      40             : 
      41             :   nc_dn: the DN of the subtree being replicated
      42             :   source_dsa_dn: the DN of the server that we are replicating from
      43             :  */
      44        1873 : static WERROR drepl_create_extended_source_dsa(struct dreplsrv_service *service,
      45             :                                                TALLOC_CTX *mem_ctx,
      46             :                                                struct ldb_dn *nc_dn,
      47             :                                                struct ldb_dn *source_dsa_dn,
      48             :                                                uint64_t min_usn,
      49             :                                                struct dreplsrv_partition_source_dsa **_sdsa)
      50             : {
      51           0 :         struct dreplsrv_partition_source_dsa *sdsa;
      52        1873 :         struct ldb_context *ldb = service->samdb;
      53           0 :         int ret;
      54           0 :         WERROR werr;
      55           0 :         struct ldb_dn *nc_root;
      56           0 :         struct dreplsrv_partition *p;
      57             : 
      58        1873 :         sdsa = talloc_zero(service, struct dreplsrv_partition_source_dsa);
      59        1873 :         W_ERROR_HAVE_NO_MEMORY(sdsa);
      60             : 
      61        1873 :         sdsa->partition = talloc_zero(sdsa, struct dreplsrv_partition);
      62        1873 :         if (!sdsa->partition) {
      63           0 :                 talloc_free(sdsa);
      64           0 :                 return WERR_NOT_ENOUGH_MEMORY;
      65             :         }
      66             : 
      67        1873 :         sdsa->partition->dn = ldb_dn_copy(sdsa->partition, nc_dn);
      68        1873 :         if (!sdsa->partition->dn) {
      69           0 :                 talloc_free(sdsa);
      70           0 :                 return WERR_NOT_ENOUGH_MEMORY;
      71             :         }
      72        1873 :         sdsa->partition->nc.dn = ldb_dn_alloc_linearized(sdsa->partition, nc_dn);
      73        1873 :         if (!sdsa->partition->nc.dn) {
      74           0 :                 talloc_free(sdsa);
      75           0 :                 return WERR_NOT_ENOUGH_MEMORY;
      76             :         }
      77        1873 :         ret = dsdb_find_guid_by_dn(ldb, nc_dn, &sdsa->partition->nc.guid);
      78        1873 :         if (ret != LDB_SUCCESS) {
      79           0 :                 DEBUG(0,(__location__ ": Failed to find GUID for %s\n",
      80             :                          ldb_dn_get_linearized(nc_dn)));
      81           0 :                 talloc_free(sdsa);
      82           0 :                 return WERR_DS_DRA_INTERNAL_ERROR;
      83             :         }
      84             : 
      85        1873 :         sdsa->repsFrom1 = &sdsa->_repsFromBlob.ctr.ctr1;
      86        1873 :         ret = dsdb_find_guid_by_dn(ldb, source_dsa_dn, &sdsa->repsFrom1->source_dsa_obj_guid);
      87        1873 :         if (ret != LDB_SUCCESS) {
      88           0 :                 DEBUG(0,(__location__ ": Failed to find objectGUID for %s\n",
      89             :                          ldb_dn_get_linearized(source_dsa_dn)));
      90           0 :                 talloc_free(sdsa);
      91           0 :                 return WERR_DS_DRA_INTERNAL_ERROR;
      92             :         }
      93             : 
      94        1873 :         sdsa->repsFrom1->other_info = talloc_zero(sdsa, struct repsFromTo1OtherInfo);
      95        1873 :         if (!sdsa->repsFrom1->other_info) {
      96           0 :                 talloc_free(sdsa);
      97           0 :                 return WERR_NOT_ENOUGH_MEMORY;
      98             :         }
      99             : 
     100        3746 :         sdsa->repsFrom1->other_info->dns_name = samdb_ntds_msdcs_dns_name(ldb,
     101        1873 :                                                                           sdsa->repsFrom1->other_info,
     102        1873 :                                                                           &sdsa->repsFrom1->source_dsa_obj_guid);
     103        1873 :         if (!sdsa->repsFrom1->other_info->dns_name) {
     104           0 :                 talloc_free(sdsa);
     105           0 :                 return WERR_NOT_ENOUGH_MEMORY;
     106             :         }
     107             : 
     108        1873 :         werr = dreplsrv_out_connection_attach(service, sdsa->repsFrom1, &sdsa->conn);
     109        1873 :         if (!W_ERROR_IS_OK(werr)) {
     110           0 :                 DEBUG(0,(__location__ ": Failed to attach connection to %s\n",
     111             :                          ldb_dn_get_linearized(nc_dn)));
     112           0 :                 talloc_free(sdsa);
     113           0 :                 return werr;
     114             :         }
     115             : 
     116        1873 :         ret = dsdb_find_nc_root(service->samdb, sdsa, nc_dn, &nc_root);
     117        1873 :         if (ret != LDB_SUCCESS) {
     118           0 :                 DEBUG(0,(__location__ ": Failed to find nc_root for %s\n",
     119             :                          ldb_dn_get_linearized(nc_dn)));
     120           0 :                 talloc_free(sdsa);
     121           0 :                 return WERR_DS_DRA_INTERNAL_ERROR;
     122             :         }
     123             : 
     124             :         /* use the partition uptodateness vector */
     125        1873 :         ret = dsdb_load_udv_v2(service->samdb, nc_root, sdsa->partition,
     126        1873 :                                &sdsa->partition->uptodatevector.cursors,
     127        1873 :                                &sdsa->partition->uptodatevector.count);
     128        1873 :         if (ret != LDB_SUCCESS) {
     129           0 :                 DEBUG(0,(__location__ ": Failed to load UDV for %s\n",
     130             :                          ldb_dn_get_linearized(nc_root)));
     131           0 :                 talloc_free(sdsa);
     132           0 :                 return WERR_DS_DRA_INTERNAL_ERROR;
     133             :         }
     134             : 
     135             :         /* find the highwatermark from the partitions list */
     136       11238 :         for (p=service->partitions; p; p=p->next) {
     137        9365 :                 if (ldb_dn_compare(p->dn, nc_root) == 0) {
     138           0 :                         struct dreplsrv_partition_source_dsa *s;
     139        1873 :                         werr = dreplsrv_partition_source_dsa_by_guid(p,
     140        1873 :                                                                      &sdsa->repsFrom1->source_dsa_obj_guid,
     141             :                                                                      &s);
     142        1873 :                         if (W_ERROR_IS_OK(werr)) {
     143        1873 :                                 sdsa->repsFrom1->highwatermark = s->repsFrom1->highwatermark;
     144        1873 :                                 sdsa->repsFrom1->replica_flags = s->repsFrom1->replica_flags;
     145             :                         }
     146             :                 }
     147             :         }
     148             : 
     149        1873 :         if (!service->am_rodc) {
     150          24 :                 sdsa->repsFrom1->replica_flags |= DRSUAPI_DRS_WRIT_REP;
     151             :         }
     152             : 
     153        1873 :         *_sdsa = sdsa;
     154        1873 :         return WERR_OK;
     155             : }
     156             : 
     157             : struct extended_op_data {
     158             :         dreplsrv_extended_callback_t callback;
     159             :         void *callback_data;
     160             :         struct dreplsrv_partition_source_dsa *sdsa;
     161             : };
     162             : 
     163             : /*
     164             :   called when an extended op finishes
     165             :  */
     166        1873 : static void extended_op_callback(struct dreplsrv_service *service,
     167             :                                  WERROR err,
     168             :                                  enum drsuapi_DsExtendedError exop_error,
     169             :                                  void *cb_data)
     170             : {
     171        1873 :         struct extended_op_data *data = talloc_get_type_abort(cb_data, struct extended_op_data);
     172        1873 :         talloc_unlink(data, data->sdsa);
     173        1873 :         data->callback(service, err, exop_error, data->callback_data);
     174        1873 :         talloc_free(data);
     175        1873 : }
     176             : 
     177             : /*
     178             :   schedule a getncchanges request to the role owner for an extended operation
     179             :  */
     180        1873 : WERROR drepl_request_extended_op(struct dreplsrv_service *service,
     181             :                                  struct ldb_dn *nc_dn,
     182             :                                  struct ldb_dn *source_dsa_dn,
     183             :                                  enum drsuapi_DsExtendedOperation extended_op,
     184             :                                  uint64_t fsmo_info,
     185             :                                  uint64_t min_usn,
     186             :                                  dreplsrv_extended_callback_t callback,
     187             :                                  void *callback_data)
     188             : {
     189           0 :         WERROR werr;
     190           0 :         struct extended_op_data *data;
     191             : 
     192        1873 :         data = talloc(service, struct extended_op_data);
     193        1873 :         W_ERROR_HAVE_NO_MEMORY(data);
     194             : 
     195        1873 :         werr = drepl_create_extended_source_dsa(service, data, nc_dn, source_dsa_dn, min_usn, &data->sdsa);
     196        1873 :         W_ERROR_NOT_OK_RETURN(werr);
     197             : 
     198        1873 :         data->callback = callback;
     199        1873 :         data->callback_data = callback_data;
     200             : 
     201        1873 :         werr = dreplsrv_schedule_partition_pull_source(service, data->sdsa,
     202             :                                                        0, extended_op, fsmo_info,
     203             :                                                        extended_op_callback, data);
     204        1873 :         if (!W_ERROR_IS_OK(werr)) {
     205           0 :                 talloc_free(data);
     206             :         }
     207             : 
     208        1873 :         dreplsrv_run_pending_ops(service);
     209             : 
     210        1873 :         return werr;
     211             : }